1 #ifndef __RIVAFB_H
2 #define __RIVAFB_H
3
4 #include <linux/config.h>
5 #include <linux/fb.h>
6 #include <video/vga.h>
7 #include <linux/i2c.h>
8 #include <linux/i2c-id.h>
9 #include <linux/i2c-algo-bit.h>
10
11 #include "riva_hw.h"
12
13 /* GGI compatibility macros */
14 #define NUM_SEQ_REGS 0x05
15 #define NUM_CRT_REGS 0x41
16 #define NUM_GRC_REGS 0x09
17 #define NUM_ATC_REGS 0x15
18
19 /* I2C */
20 #define DDC_SCL_READ_MASK (1 << 2)
21 #define DDC_SCL_WRITE_MASK (1 << 5)
22 #define DDC_SDA_READ_MASK (1 << 3)
23 #define DDC_SDA_WRITE_MASK (1 << 4)
24
25 /* holds the state of the VGA core and extended Riva hw state from riva_hw.c.
26 * From KGI originally. */
27 struct riva_regs {
28 u8 attr[NUM_ATC_REGS];
29 u8 crtc[NUM_CRT_REGS];
30 u8 gra[NUM_GRC_REGS];
31 u8 seq[NUM_SEQ_REGS];
32 u8 misc_output;
33 RIVA_HW_STATE ext;
34 };
35
36 struct riva_par;
37
38 struct riva_i2c_chan {
39 struct riva_par *par;
40 unsigned long ddc_base;
41 struct i2c_adapter adapter;
42 struct i2c_algo_bit_data algo;
43 };
44
45 struct riva_par {
46 RIVA_HW_INST riva; /* interface to riva_hw.c */
47 u32 pseudo_palette[16]; /* default palette */
48 u32 palette[16]; /* for Riva128 */
49 u8 __iomem *ctrl_base; /* virtual control register base addr */
50 unsigned dclk_max; /* max DCLK */
51
52 struct riva_regs initial_state; /* initial startup video mode */
53 struct riva_regs current_state;
54 #ifdef CONFIG_X86
55 struct vgastate state;
56 #endif
57 atomic_t ref_count;
58 unsigned char *EDID;
59 unsigned int Chipset;
60 int forceCRTC;
61 Bool SecondCRTC;
62 int FlatPanel;
63 struct pci_dev *pdev;
64 int bus;
65 int cursor_reset;
66 #ifdef CONFIG_MTRR
67 struct { int vram; int vram_valid; } mtrr;
68 #endif
69 struct riva_i2c_chan chan[3];
70 };
71
72 void riva_common_setup(struct riva_par *);
73 unsigned long riva_get_memlen(struct riva_par *);
74 unsigned long riva_get_maxdclk(struct riva_par *);
75 void riva_delete_i2c_busses(struct riva_par *par);
76 void riva_create_i2c_busses(struct riva_par *par);
77 int riva_probe_i2c_connector(struct riva_par *par, int conn, u8 **out_edid);
78
79 #endif /* __RIVAFB_H */
80
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